baber/WOPTO huggingface dataset:
Patent CA-2131702-A1 (CA)
Inventor: GOLDBERG MARK
IPC: A61B17/22
Filed: 1993-04-09
Abstract: An improved valve cutter (10) for in-situ incision of valve leaflets which safely, efficiently, and consistently renders venous valves incompetent while minimizing frictional forces on the endothelium of the vessel and preventing inadvertent contact between cutting surfaces and the intima of the vein wall. The valve cutter (10) includes a plurality of proximally directed prongs (36) presenting sharp edges, where the prongs (36) are separated by slots (38) similarly presenting sharp edges to pierce the valve leaflets so that the cutting head (12) is provided with a continuous cutting surface in multiple planes running along the entire forward edge of the cutting head. Means are provided for viewing the valves as they are penetrated by the sharp cutting edges.
Patent CA-2136893-A1 (CA)
Title: Substituted n-piperidino-pyrazole-3-carboxamide
Inventor: BARTH FRANCIS
IPC: C07D231/14
Filed: 1994-11-29
Abstract: N-piperidino-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methylpyrazole-3-carboxamide of the formula:    its pharmaceutically acceptable salts and their solvates, are potent antagonists of the central cannabinoid receptors. They are prepared by reaction of a functional derivative of 5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methylpyrazole-3-carboxylic acid with 1-aminopiperidine and, optionally, formation of a salt.
Patent CA-2137206-A1 (CA)
Title: Glucagon-like insulinotropic peptides, compositions and methods
Inventor: GALLOWAY JOHN A
IPC: A61K38/00
Filed: 1994-12-02
Abstract: The present invention provides novel compounds comprising certain GLP-1 molecules complexed with a divalent metal cation, pharmaceutical compositions thereof, and methods of using such compounds for enhancing the expression of insulin in B-type islet cells and for treating maturity onset diabetes mellitus in mammals, particularly humans.
Patent CA-2137435-A1 (CA)
Title: Apparatus and method for synchronizing a firing circuit for a brushless alternator rectified d.c. welder
Inventor: OSOWSKI DENIS M
IPC: H02M7/12
Filed: 1994-12-06
Abstract: An engine-driven, multiple-phase, alternator-powered SCR rectified arc welding power supply using a single synchronizing winding within the alternator providing signals to a synchronizing digitizer which masks noise for most of each cycle of the alternator. The synchronizing circuitry prevents spurious synchronizing signals.
Patent CA-2140954-A1 (CA)
Title: High index brown photochromic glasses
Inventor: BROCHETON YVES A H
IPC: G02B1/02
Filed: 1995-01-24
Abstract: This invention is directed to photochromic glasses which darken to a brown coloration upon exposure to actinic radiation, which glasses have a refractive index of about 1.6, and Abbe number between 42-47, a density less than 2.82 g/cm3, and are preferably essentially free of TiO2. The glass compositions consist generally, in weight percent, of:      SiO2  43-52     K2O        2-9  Nb2O5 0-5 B2O3 12.5-18    MgO        0-5  Ag        0.100-0.175 Al2O3 0-3         CaO 0-5            Cl      0.140-0.350 ZrO2       6-14      SrO       0-9       Br       0.093-0.195 LiO2      1.5-3.5    BaO       0-9   CuO 0.008-0.030 Na2O      0-3
Patent CA-2141106-A1 (CA)
Title: Glycopeptide antibiotic derivatives
Inventor: COOPER ROBIN D G
IPC: A61P31/04
Filed: 1995-01-25
Abstract: The present invention provides glycopeptide antibiotic derivative compounds. These derivative compounds possess antibacterial activity aginst a wide variety of bacteria, including activity against vancomycin-resistant isolates. Methods of making and using these glycopeptide antibiotic derivative compounds are also provided.
Patent CA-2141441-A1 (CA)
Title: Polarity reversing dc power supply for remotely located equipment
Inventor: WEST LAMAR E JR
IPC: H02M7/538
Filed: 1993-07-20
Abstract: A polarity reversing DC power inserter circuit (204) for remotely located equipment such as interdiction apparatus or other signal control apparatus used in a cable or community antenna television (CATV) signal distribution system. A power transformer circuit (210) receives a 117 volts AC power source at a subscriber's premise and converts it to a lower voltage positive and negative DC. A polarity reversing circuit (204) comprising switching transistors (220,221) and a 50% duty cycle multivibrator (230) switches between the lower voltage DC at a frequency less that 10 Hz so as to avoid shock hazards associated with normal alternating current, while alternating sufficiently often to avoid electrolysis and corrosion problems associated with use of direct current (DC) powering. The reversing polarity DC power is then inserted into a cable drop (115) to be provided uplink to the signal control apparatus. At the signal control apparatus, the polarity reversing DC is converted into DC by a power utilization circuit, and then utilized to power the signal control apparatus.
Patent CA-2143398-A1 (CA)
Inventor: KELLY MICHAEL
IPC: A47C7/66
Filed: 1995-02-24
Abstract: When a person is sitting in a chair facing an outdoor campfire, the radiant heat created from the fire can only be felt on parts of a person's body directly exposed to the fire. Other parts of the body not directly exposed to the radiant heat, such as a person's rear thighs and back, will often feel cold in cool environmental conditions. Using the radiant heat generated from a campfire, a flexible sheet with a textured reflective surface, attached to the top rail backrest of a chair and to the bottom rail between the two front legs of a chair forming a curve or an arc under the chair, will reflect the radiant heat in an upward direction warming those parts of a person's body not normally receiving heat. The sheet is shaped to fit between the rear legs of generally any typical outdoor folding chair.
Patent CA-2144367-A1 (CA)
Title: Microemulsion all purpose liquid cleaning compositions
Inventor: ADAMY STEVEN
IPC: C11D17/00
Filed: 1995-03-10
Abstract: An improvement is described in microemulsion compositions which is more environmentally friendly, especially effective in the removal of oily and greasy soil and has an evidenced grease release effect, contains an anionic detergent, an esterfied ethoxylated glycerol type compound, a hydrocarbon ingredient, and water which comprises the use of a water-insoluble odoriferous perfume as the essential hydrocarbon ingredient in a proportion sufficient to form either a dilute o/w microemulsion composition containing, by weight, 0.1% to 6% of an anionic detergent, 0 to 16% of a nonionic surfactant, 0.1 to 50% of a cosurfactant, 0.1% to 20% of the esterfied ethoxylated glycerol type compound, 0.4% to 10% of perfume or a hydrocarbon and the balance being water.
Patent CA-2144571-A1 (CA)
Inventor: CAMPBELL MICHAEL C
IPC: F17C13/12
Filed: 1995-03-14
Abstract: A gas tank evacuator (10) comprises an evacuator housing (12) into which a neck (80) of a gas tank (82) can be screwed and an elongated valve-removal rod (14)  for slidably  passing  through  the  evacuator  housing  and engaging and unscrewing a stem-actuated valve (88) of the gas tank.  An elongated valve actuator pin (18) slidably passes through the valve-removal rod to extend from lower and upper ends of the valve-removal rod for independently actuating the stem-actuated valve.  The valve-removal rod is moved longitudinally by a valve-removal-rod lever (16) which is pivotally attached to the evacuator housing and valve-removal rod by pivot links (60).  The valve-removal-rod lever is pivoted on the evacuator housing to drive a valve-engaging device at a lower end of the valve-removal rod into engagement with the stem-actuated valve of the gas tank for its removal from the gas tank.
Patent CA-2147162-A1 (CA)
Title: Remyelination using neural stem cells
Inventor: WEISS SAMUEL
IPC: A61K35/30
Filed: 1993-10-15
Abstract: A method for the remyelination of neurons is disclosed wherein neural stem cells isolated from adult or fetal neural tissue are proliferated in a culture medium containing a growth factor to produce precursor cells having a nestin (+) phenotype. The precursor cells are capable of differentiation into oligodendrocytes which, when associated with a demyelinated neuron, effect remyelination.
Patent CA-2148598-A1 (CA)
Title: No-clean soldering flux and method using the same
Inventor: SCHNEIDER ALVIN F
IPC: B23K35/363
Filed: 1993-10-07
Abstract: A no-clean soldering flux consists essentially of one or more halide-free, water soluble activators in an aggregate amount not exceeding about 5 % by weight of the flux, a water soluble fluorinated surfactant in an amount not exceeding about 1 % by weight of the flux, and water. The flux is substantially VOC-free and is particularly useful in a method of producing soldered printed wiring assemblies with minimal residual ionic contamination, so that post-soldering cleaning of the assemblies is unnecessary. The absence of significant amounts of VOC's and the elimination of post-soldering cleaning result in substantial environmental and production-related benefits.
Patent CA-2150725-A1 (CA)
Title: Seismic Valve
Inventor: HUNTER DONALD B
IPC: F16K17/36
Filed: 1993-12-06
Abstract: A seismic shut off valve includes a cripple column responsive to seismic movement. A toggle spring overlies the cripple column. Latch pins extend from the toggle spring into a valve body to hold a popper valve in an open position. During an earthquake, the cripple column buckles causing the toggle spring to bow upwardly under spring force exerted on the toggle spring through the latch pins from the popper valve. The latch pins release the poppet valve which shifts to seal against a valve seat in a valve body. A ball joint connecting the valve body and cripple column allow the cripple column to be vertically aligned despite use of the valve on a non-vertical pipe.
Patent CA-2154118-A1 (CA)
Title: Radiation compatible lubricant for medical devices
Inventor: KHAN MOHAMMAD A
IPC: A61L2/08
Filed: 1995-07-18
Abstract: This invention relates to the use of vitamin E or its derivative, such as vitamin E acetate, with a silicone lubricant for use on a medical device. The vitamin E prevents degradation of the silicone lubricant when the medical device is irradiated for sterilization.
Patent CA-2154457-A1 (CA)
Title: Microwave multiplexer with channels of varying fractional bandwidths
Inventor: RAUSCHER CHRISTEN
IPC: H04J1/00
Filed: 1993-12-10
Abstract: A microwave multiplexer includes a first channel segment (8) having first components (Ai, Bi, Ci, Ji) derived from a first log-periodically scaled prototype. The first channel segment (8) receives a composite signal from a composite-signal port (PC), selects a first channel (CH1, CH2, CH3) having a first bandwidth (BW1, BW2, BW3) and first center frequency (f1, f2, f3) from the composite signal, and directs a first channelized signal to a first channelized-signal port (PN) responsive to the first channel (CH1, CH2, CH3). In addition, the multiplexer includes a second channel segment (4, 6), connected to the first channel segment (8) and having second components (Ai, Bi, Ci, Ji) derived from a second log-periodically scaled prototype. The second channel segment (4, 6) receives the composite signal from the composite-signal port (PC) via the first segment (8), selects a second channel (CH1, CH2, CH3) having a second bandwith (BW1, BW2, BW3) and second center frequency (f1, f2, f3) from the composite signal, and directs a second channelized signal to a second channelized-signal port (P1, P2) respondive to the second channel (CH1, CH2, CH3).
Patent CA-2155746-A1 (CA)
Inventor: OFFENBROICH ADRIAN
IPC: F16B7/04
Filed: 1993-12-10
Abstract: Un dispositif de serrage sert à relier de manière libérable deux pièces profilées (1, 4) dont l'une (1) est pourvue d'une rainure longitudinale (2) en contre-dépouille et l'autre (4) a un profil creux (5) en forme de boîte dans lequel est insérée une pièce de serrage (6) pourvue d'une tête rectangulaire (7) avec des lèvres qui s'accrochent à la rainure longitudinale (2) et la délimitent. La pièce de serrage (6) comprend une surface inclinée (11) transversale par rapport à son axe longitudinal qui coopère avec une vis de serrage (15) à pointe conique. La vis de serrage (15) est accessible par une ouverture (14) du profil creux (5). Afin de simplifier la construction du dispositif de serrage, la pièce de serrage (6) est constituée d'une seule pièce et comprend une pièce à tête (8), un tirant (10) et une boucle élastique (9) recourbée sur au moins 180~ qui relie la pièce à tête (8) au tirant (10). L'élasticité de la boucle (9) est suffisante pour que la pièce (8) qui porte la tête rectangulaire (7) se dégage lorsque la vis de serrage (15) est desserrée. Un excentrique peut remplacer la vis de serrage (15).
Patent CA-2155858-A1 (CA)
Inventor: PHARES LOUIS A
IPC: H05B37/02
Filed: 1994-02-11
Abstract: A controlled lighting comprises a control system which transmits DATA and CLOCK information to a plurality of light modules. The light modules each include at least two light elements and a control unit which is responsive to the DATA and CLOCK information received from the control system to vary individually the amount of light emitted by each of the light elements in each light module. Contemplated uses of the controlled lighting system include decorative lighting, illuminated display signs, etc.
Patent CA-2156347-A1 (CA)
Title: Abrasive body
Inventor: SIGALAS IACOVIS
IPC: B24D3/14
Filed: 1995-08-16
Abstract: A method of manufacture of an abrasive body for use as a wear part, cutting tool insert or the like, includes the steps of providing a mixture comprising an organometallic polymer capable of being pyrolised to produce ceramic particles, and a mass of abrasive particles such as diamond or cubic boron nitride, applying heat to the mixture to cause the polymer to polymerise, and sintering of the pyrolised mixture to a coherent abrasive body.
Patent CA-2156982-A1 (CA)
Title: Torque-resistant, seal setting force-limited, hydraulically settable well packer structure and associated methods
Inventor: WHITE PAT M
IPC: E21B33/129
Filed: 1995-08-25
Abstract: A torque-resistant hydraulically settable packer is coaxially positionable within a subterranean well flow conductor and has a tubular body that carries a circumferentially spaced series of radially outwardly movable slip anchors having, on outer side surfaces thereof, gripping teeth with lengths that are sloped relative to the longitudinal axis of the tubular and to a plane perpendicular. Inner side surfaces of the slip anchors are engaged by circumferentially spaced flat outer side surface areas formed on the facing frustroconical ends of an opposed pair of annular setting wedge members coaxially carried by the tubular body and being axially drivable to radially outwardly shift the slip anchors to their setting positions. As the slip anchors are being set, an annular resilient seal structure is simultaneously compressed in an axial direction against a setting force limiting member telescopingly received in one of the setting wedge members, and radially deformed outwardly into sealing engagement with the interior side surface of the well flow conductor. After the slip anchors are set, the seal structure is further compressed in an axial direction by hydraulically shifting the tubular body relative to the slip anchors. If this subsequent axial compression force exerted on the seal structure is above a predetermined maximum level the setting force member is wedgingly driven into its associated setting wedge member to limit the total axial compression force imposed on the seal structure.
Patent CA-2161657-A1 (CA)
Inventor: ROSSINI STEVEN J
IPC: B65H23/188
Filed: 1994-04-14
Abstract: Un appareil d'alimentation en bande continue est décrit selon cette invention, cet appareil servant à alimenter en bande, à une tension sensiblement uniforme, un dispositif d'application de bande présentant une demande progressive, tel qu'un dispositif d'enrubannage et de scellement de boîtes. En général, l'appareil d'alimentation en bande continue comprend plusieurs sources de bande, par exemple sous forme de rouleau, à partir desquelles une bande peut alimenter le dispositif d'application, un poste de raccordement permettant de raccorder la bande provenant d'au moins une des sources à une bande provenant d'une autre source, un moyen permettant d'effectuer le raccordement et, ainsi, le transfert d'une source à une autre, ainsi qu'un moyen de régulation de tension permettant de distribuer la bande à partir de l'appareil d'alimentation à une tension sensiblement uniforme et selon une demande progressive. Le mécanisme de raccordement permet de préférence de raccorder également la bande dans le sens inverse, à partir du poste comprenant l'autre source de bande, vers les postes comprenant la première source de bande. Le moyen de régulation de tension est de préférence constitué par un poste d'entraînement de bande, un premier bras compensateur présentant un moyen de formation de boucle variable entre chacune des sources de bande et le poste de raccordement, et un second bras compensateur positionné de manière opérationnelle successivement au poste d'entraînement de bande, lequel est lui-même placé de manière opérationnelle en aval du poste de raccordement. En outre, le premier bras compensateur est de préférence utilisé pour commander un mécanisme de freinage qui permet de supprimer les effets d'inertie en roulis par rapport au poste de raccordement. Le second bras compensateur est également utilisé de manière avantageuse pour réguler la vitesse du moteur d'entraînement du poste d'entraînement de bande.
Patent CA-2161708-A1 (CA)
Title: Boron nitride and aluminum thermal spray powder
Inventor: DORFMAN MITCHELL R
IPC: C09D5/46
Filed: 1995-10-30
Abstract: A composite thermal spray powder, for producing abradable coatings, is substantially in the form of clad particles each of which has a core particle of boron nitride and subparticles of aluminum-silicon alloy.  The subparticles are bonded to the core particle with an polymeric binder.
Patent CA-2161932-A1 (CA)
Title: Photovoltaic Element and Method for Producing the Same
Inventor: ICHINOSE HIROFUMI
IPC: H01L31/076
Filed: 1995-11-01
Abstract: A photovoltaic element having a high release voltage is provided by inhibiting the injection of carrier to p-type semiconductor located at the upmost surface of the generation layer from the upper electrode.    The photovoltaic element according to the present invention, in which an n-type semiconductor which is supposed to be represented by "n", an i-type semiconductor which is supposed to be represented by "i", and p-type semiconductor which is supposed to be represented by "p", are laminated in this order on to a substrate to form a structure comprising a nip junction, and a generation layer containing at least one of the structure is provided; that the upper electrode is placed on the p-layer located at the upmost surface of the generation layer to form the photovoltaic element, is characteristic in that the p-layer positioned at the upmost surface of the generation layer is composed of a first p-layer containing crystal that is connected with the i-layer and a second p-layer comprising amorphous that is connected with the upper electrode.
Patent CA-2162839-A1 (CA)
Inventor: ALLEN MARY ELIZABETH
IPC: F21V21/00
Filed: 1995-11-10
Abstract: A clothing with illuminating device comprises an illuminating panel, a power source electrically connected to the illuminating panel by electric wires, a switch for controlling the power supply from the power source, a sleeve for protecting and supporting the illuminating panel, a pouch with an opening for receiving the power source and the illuminating panel, the pouch adapted to be detachably mounted to the clothing, fastener for closing the pouch, a window opening provided on the pouch for permitting light signal generating from the illuminating panel to pass through when the power source is being turned on.
Patent CA-2165763-A1 (CA)
Title: Light-tight package
Inventor: RITCHIE SHAWN W
IPC: G03C3/02
Filed: 1995-12-20
Abstract: An improved light-tight package for a roll (10) of a length (14) light-sensitive material such as photographic film or paper includes an opaque leader (22) wound around the roll. Folded-over portions (48, 50) of opaque end disks (32, 34) are held in place by adhesive tape strips (44, 46). Upon unrolling one embodiment of the package by pulling the leader, the end disks release from the adhesive strips without tearing; and the adhesive strips remain attached to the leader and are removed from the roll with the leader. Upon unrolling another embodiment, the end disks tear circumferentially and the torn-away portions are removed with the tape strips and the leader.
Patent CA-2168917-A1 (CA)
Title: Virtual machining techniques for modifying computer models of parts
Inventor: KIRIDENA VIJITHA
IPC: G06T17/00
Filed: 1996-02-06
Abstract: Methods and apparatus for representing a three-dimensional object by means of a High Density Point Data Model (HDPDM) consisting of a large number of individual data values, each of which specifies the coordinates of a point on the surface of a three dimensional object.  An initial HDPDM is produced by scanning a physical object, tessellating the elements of a CAD representation of the object surface, or evaluating mathematical expressions which describe the surface.  Further data values define a virtual tool surface which is spaced from the modeled object surface.  The projection of the virtual tool surface on the object surface along projection lies parallel to a defined axis of projection identifies selected points on the surface which are modified by effectively moving them to the tool surface.  The tool surface may be translated with respect to the object surface along a predetermined trajectory, with the tool surface being iteratively used to operate on an area of projection on the model surface to provide a virtual machining process which performs free-form alterations on the data model.  The finished data model may then be used to create a physical part or generate an output CAD or mathematical model which defines a free-form part.
Patent CA-2171448-A1 (CA)
Inventor: FELDMAN PAUL LAWRENCE
IPC: C07D207/10
Filed: 1994-09-20
Abstract: Cette invention concerne des nouveaux composés de pyrrolidine de formule (I) qui sont utiles pour inhiber le fonctionnement de la phosphodiestérase de type IV (PDE-IV) ainsi que des procédés de production de ces derniers. Des applications de ces nouveaux composés dans le traitement des maladies inflammatoires et d'autres maladies associées à des taux élevés de cytokines, et dans le traitement des dérèglements du système nerveux central sont également décrites.
Patent CA-2172067-A1 (CA)
Title: Rotating biological filter system
Inventor: HICKOK ROY STRAWN
IPC: C02F3/00
Filed: 1994-08-24
Abstract: An aquatic filter system (10) hav-ing a rotatably mounted cylindrical filter body (26).  The cylindrical filter body is formed by  a water  absorbing mass of material (24).  Water applied to one side of the filter body  unbalances  the filter body which causes the filter body to rotate.  As a result of the rotational movement, at least a  portion of the filter body is  alternately exposed to the water and  the atmosphere  to foster the  growth of aerobic bacteria on  the  surfaces  of the filter body.